Cloning 4

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and a single human chromosome. Human embryo cloning starts with a standard in vitro fertilization procedure. Sperm and an egg cell are mixed together on a glass dish. After conception, the zygote (fertilized egg) is allowed to develop into a blastula (a hollow mass of cells). The zygote divides first into two cells, then four, then eight... A chemical is added to the dish to remove the �zona pellucida� covering; this material provides nutrients to the cells to promote cell division. With the covering removed, the blastula is divided into individual cells which are deposited on individual dishes. They are then coated with an artificial zona pellucida and allowed to divide and develop. That is how a human embryo clone is made using the �twinning method.� Some scientists believe that human embryo cloning and related research can have some positive results, however, many religious leaders feel that cloning and related research should not be permitted. Religion and science have ...

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They express the strongest possible opposition to the cloning of human beings and urge to press for a comprehensive international treaty to ban it worldwide. Jeremy Rifkin, president of the Foundation on Economic Trends in Washington DC, leads a coalition of 300 religious and ethics organizations from around the world. He proposes a worldwide ban on cloning, saying it should carry a penalty on a par with rape, child abuse, and murder. Aside from the religious aspect, human cloning has brought up many moral and ethical questions. The National Institute of Health set up a medical panel to form a preliminary set of guidelines to help bridge the gap between scientists and society. They ...

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